Question to the Department for Transport:

To ask His Majesty's Government what estimate they have made of the number of untaxed vehicles driving on UK highways.

The outcome of the most recent roadside survey, which provides an estimate of the number of unlicensed vehicles in traffic, was published in December 2023. This showed that 98.7 per cent of vehicles across the UK were correctly licensed, which equates to an estimated 498,000 unlicensed vehicles and an evasion rate of 1.3 per cent.

The survey indicated that five per cent of the estimated 498,000 unlicensed vehicles were subject to a statutory off-road notification.